accompanied by michelle obama, secretary leon panetta and martin dempsey will pay special tribute to the lives lost at the pentagon and on american airlines flight 77 on september 11, 2001. by placing a wreath at the zero line at the pentagon memorial. [background sounds] ♪ ♪ ♪ ♪ ♪ ♪ [background sounds] [background soun] [background sounds] >> please direct your attention to the pentagon memorial flagpole to your right and honor of patriot day and in remembrance of the 184 lives lost at the pentagon. the flag is flying at half-staff. ladies and gentlemen, the national anthem of the united states. ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ >> ladies and gentlemen, the united states army chief of chaplains, major general donald some for. >> let us pray. remember the events of september 11, 2001 and pray for all those who grieve today, for those who witnessed and survived the attacks, those he came to rescue, to save and protect all the souls who were lost remembering especially those whose names are eternally etched into this memorial. on a day when the force was v